CN202614605U - Marshall flow value testing device for high-strength bituminous mixture - Google Patents
Marshall flow value testing device for high-strength bituminous mixture Download PDFInfo
- Publication number
- CN202614605U CN202614605U CN 201220162137 CN201220162137U CN202614605U CN 202614605 U CN202614605 U CN 202614605U CN 201220162137 CN201220162137 CN 201220162137 CN 201220162137 U CN201220162137 U CN 201220162137U CN 202614605 U CN202614605 U CN 202614605U
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- China
- Prior art keywords
- marshall
- digital display
- testing machine
- cushion block
- ruler
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- Expired - Fee Related
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Abstract
The utility model discloses a Marshall flow value testing device for a high-strength bituminous mixture. The Marshall flow value testing device comprises a digital display compression-testing machine, two Marshall test molds, a cushion blocks, a marking pen and a straight ruler, wherein the two Marshall test molds are installed right above the center of a lower platen and below an upper platen of the digital display compression-testing machine, the two Marshall test molds are vertically buckled to form a columnar hollow cavity, a Marshall test piece is installed in the columnar hollow cavity, the straight ruler is fixed at one end of the columnar hollow cavity, the straight ruler edge with scales and the center lines of the left and right length of the Marshall test molds coincide, and the cushion block is located between the center position of the upper Marshall test mold and a base plate of the digital display compression-testing machine. The cushion block is cylindrical, and the diameter of the bottom surface of the cushion block equals to that of a circular pressure-bearing protrusion portion at the center of the top of the upper Marshall test mold. The Marshall flow value testing device is simple in structure, convenient to operate and high in practicability.
Description
Technical field
The utility model relates to a kind of high-strength asphalt compound Marshall flow valuve proving installation, and this device is used for the test specimen that exceeds common Marshall appearance range ability is carried out the test of Marshall flow valuve.
Background technology
Marshall Test is used to measure bitumen mixture specimen failing load and non-deformability.Flow valuve is the vertical deformation of marshal piece test specimen when reaching peak load, in 0.1mm.At present; Common asphalt Marshall appearance is made up of pressure head, two parts such as semicircle pressing mold, heavy frame, base, flow valuve pen recorder and displacement sensor; But generally about 40kN, this can meet the demands for common marshal piece the pressure range of common Marshall appearance; But the high strength marshal piece for some special-purpose can not satisfy the test request to its flow valuve.Therefore, a kind of to be directed to the proving installation that the marshal piece that exceeds common Marshall appearance range ability carries out flow valuve test be very to be necessary in exploitation.
Summary of the invention
Defective or deficiency to above-mentioned prior art existence; The purpose of the utility model is; A kind of high-strength asphalt compound Marshall flow valuve proving installation is provided; This device with, cushion block, straight steel ruler etc., can be realized the flow valuve test of high-strength even the strong marshal piece of superelevation by common Marshall die trial according to the method for describing in the embodiment.The utility model is simple in structure, and is easy to operate, practical.
In order to achieve the above object, the utility model adopts following technical solution:
A kind of high-strength asphalt compound Marshall flow valuve proving installation; It is characterized in that; Comprise digital display pressure testing machine, two Marshall die trials, cushion block, marking pen and rulers, two Marshall die trials are installed on directly over the lower platen center of digital display pressure testing machine, and are positioned at the below of top board; Two Marshall die trials interlock up and down and form the column cavity; In this column cavity marshal piece is installed, ruler vertically is fixed on an end of column cavity, and ruler has the edge of scale and the center line of Marshall die trial left and right sides length coincides; Above the top board of Marshall die trial and digital display pressure testing machine between be lined with cushion block.
The utility model also comprises following other technologies characteristic:
Said digital display pressure testing machine is selected SYE-2000 type pressure testing machine for use.
The Marshall die trial among the JTG E20-2011 " highway engineering pitch and asphalt testing regulations " is selected in said die trial for use.
Said ruler is the steel ruler of precision 0.1mm range 20cm, cements in Marshall upper testing mould edge and parallel with the edge through die trial hollow circular diameter.
Said cushion block is a right cylinder, the equal diameters of the circular pressure-bearing projection of the bottom surface diameter of this cushion block and Marshall die trial top center.
The precision of said ruler is that 0.1mm, range are 20cm.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Below in conjunction with accompanying drawing and embodiment the utility model is further explained.
Embodiment
As shown in Figure 1, the high-strength asphalt compound Marshall flow valuve proving installation of the utility model comprises digital display pressure testing machine 1, two Marshall die trials 2, cushion block 3, marking pen and rulers 4, and the precision of ruler 4 is that 0.1mm, range are 20cm; Two Marshall die trials 2 are installed on directly over lower platen 6 centers of digital display pressure testing machine 1; And be positioned at the below of top board 7; Two Marshall die trials 2 interlock up and down and form the column cavity; Marshal piece 5 is installed in this column cavity, and ruler 4 vertically is fixed on an end of column cavity, and ruler 4 has the edge of scale and the center line of Marshall die trial 2 left and right sides length coincides; The center of the Marshall die trial 2 above being positioned at and the base plate of digital display pressure testing machine 1 is lined with cushion block 3.
Digital display pressure testing machine 1 is selected SYE-2000 type pressure testing machine for use.The Marshall die trial of standard among the JTG E20-2011 " highway engineering pitch and asphalt testing regulations " is selected in Marshall die trial 2 for use.Cushion block 3 is a right cylinder, the equal diameters of the circular pressure-bearing projection of the bottom surface diameter of cushion block 3 and Marshall die trial 2 top center.
The step that application the utility model carries out the test of Marshall flow valuve to the time is following:
1, asphalt is prepared into the marshal piece 5 of given size;
2, find out lower platen 6 centers of digital display pressure testing machine 1 and marking;
3, use center with the same method mark die trial 2 of step 1;
4, ruler 4 is cemented in a side of Marshall die trial 2, the center line of its edge that has scale and Marshall die trial 2 left and right sides length is coincided;
5, test specimen 5 is laterally placed two hollow circuit cylinders between the semicircle die trial 2, make test specimen 5 receive lateral confinement, the die trial 2 that will have test specimen 5 then is placed on the top, center of the lower platen 6 of digital display pressure testing machine 1;
6, cylinder cushion block 3 is held in place on the circular projection of center of top of die trial 2 of top, the base plate center that guarantees die trial 2, cushion block 3 and digital display pressure testing machine 1 point-blank;
6, rotate the rotating disk on digital display pressure testing machine 1 top, digital display pressure testing machine 1 top board 7 is just contacted with cushion block 3;
7, under the temperature of regulation, start digital display pressure testing machine 1 and pressurize according to given pace; When force value stops pressurization, the reading l at record ruler 4 lower ends and Marshall die trial 2 intersection point places to zero the time from negative
1(mm of unit);
8, opening pressure machine again; Loading speed according to T0709-2011 test method regulation among the JTG E20-2011 " highway engineering pitch and asphalt test are regular " loads; When the pressure value of pressure testing machine 1 demonstration no longer raises; Stop pressurization, the reading l of record ruler 4 lower ends and Marshall die trial intersection point
2(mm of unit).
9, obtaining high-strength asphalt compound Marshall flow valuve does | l
2-l
1| (mm of unit).
Claims (4)
1. high-strength asphalt compound Marshall flow valuve proving installation; It is characterized in that; Comprise digital display pressure testing machine (1), two Marshall die trials (2), cushion block (3), marking pen and ruler (4), two Marshall die trials (2) are installed on directly over lower platen (6) center of digital display pressure testing machine (1), and are positioned at the below of top board (7); Two Marshall die trials (2) interlock up and down and form the column cavity; Marshal piece (5) is installed in this column cavity, and ruler (4) vertically is fixed on an end of column cavity, and ruler (4) has the edge of scale and the center line of Marshall die trial (2) left and right sides length coincides; Be lined with cushion block (3) between the Marshall die trial (2) above being positioned at and the top board (7) of digital display pressure testing machine (1).
2. high-strength asphalt compound Marshall flow valuve proving installation as claimed in claim 1 is characterized in that said digital display pressure testing machine (1) is selected SYE-2000 type pressing machine for use.
3. high-strength asphalt compound Marshall flow valuve proving installation as claimed in claim 1 is characterized in that said cushion block (3) is a right cylinder, the equal diameters of the circular pressure-bearing projection of bottom surface diameter of this cushion block (3) and Marshall die trial (2) top center.
4. high-strength asphalt compound Marshall flow valuve proving installation as claimed in claim 1, the precision of said ruler (4) is that 0.1mm, range are 20cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220162137 CN202614605U (en) | 2012-04-17 | 2012-04-17 | Marshall flow value testing device for high-strength bituminous mixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220162137 CN202614605U (en) | 2012-04-17 | 2012-04-17 | Marshall flow value testing device for high-strength bituminous mixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202614605U true CN202614605U (en) | 2012-12-19 |
Family
ID=47348294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220162137 Expired - Fee Related CN202614605U (en) | 2012-04-17 | 2012-04-17 | Marshall flow value testing device for high-strength bituminous mixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202614605U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404545A (en) * | 2016-11-21 | 2017-02-15 | 天津尚吉液压设备有限公司 | Stress and strain measurement system |
-
2012
- 2012-04-17 CN CN 201220162137 patent/CN202614605U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404545A (en) * | 2016-11-21 | 2017-02-15 | 天津尚吉液压设备有限公司 | Stress and strain measurement system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121219 Termination date: 20130417 |